Patents by Inventor Jadwiga Stanecka

Jadwiga Stanecka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for making polyesterimide varnishes
    Patent number: 5907028
    Abstract: A method for making polyesterimide varnishes by polycondensing and imidat a mixture of trimellitic anhydride, 4,4'-diamino-diphenyl methane, glycol, dimethyl terephthalate and glycerol or tris(hydroxyethyl) isocyanurate or optionally p,p'-dihydroxy-diphenyl-dimethyl methane, with a transesterification catalyst added, and subsequently dissolving the resulting polyesterimide resin in an organic solvent with a crosslinking catalyst added, characterized by the feature that 2-methyl-1,3-propanediol and/or 2-butyl-2-ethyl-1,3-propanediol is used as the glycol or as one of the glycols.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: May 25, 1999
    Assignee: Instytut Chemii Przemyslowej im. Prof. Ignacego Moscickiego ul.
    Inventors: Elzbieta Wardzinska, Piotr Penczek, Jadwiga Stanecka, Barbara L/os-Kuchta, Edward Pl/atek, Krystyna Wiaduch, Wojciech Jewl/oszewicz, Tomasz Jarmulski